Go Back   Rangefinderforum.com > Cameras / Gear / Photography > Classic Film RangeFinders & Other Classics > Large Format Film RF

Large Format Film RF Forum for Large Format Rangefinders (generally 4x5 or larger format) iIncluding Linhof 4x5, Graflex 4x5, and other Large Format Rangefinders.

Reply
 
Thread Tools Search this Thread Display Modes

Graflex technician needed
Old 12-27-2016   #1
lufftpablo
Registered User
 
lufftpablo is offline
Join Date: Oct 2008
Posts: 18
Graflex technician needed

Hi, i recently bought a graflex crown.

The kalart rangefinder is not synchronized with the lens.

Also the lens, a schneider xenar 135 4.7, seems to have a problem, there is some kind of fog or light leak on the center of the image, i think that is the lens, not the bellow because i checked it with a flashlight and i did not see a light leak.

If someone could recommend a good technician, best if based in europe i would apreciate that.

Thanks a lot
  Reply With Quote

Old 12-27-2016   #2
Mackinaw
Think Different
 
Mackinaw is offline
Join Date: Mar 2005
Location: One hour south of the Mackinaw Bridge
Posts: 2,949
Maybe post a question on the Graflex site?

http://graflex.org/

Jim B.
__________________
My fancy-schmancy gallery:

http://snowcountryphotography.com

My RFF Gallery:

http://www.rangefinderforum.com/phot...user=1453&sl=m
  Reply With Quote

Old 12-27-2016   #3
jim_jm
Registered User
 
jim_jm's Avatar
 
jim_jm is offline
Join Date: Jun 2007
Location: San Diego, Ca
Posts: 217
It's relatively easy to calibrate the Kalart RF on your Crown, Graflex.org has the details here: http://graflex.org/speed-graphic/kalart-adjustment.html . Using these instructions, it took me about a hour or so to get mine adjusted.

As to the lens, if you have a sample image someone here might be able to help diagnose a possible cause.

Not sure about Graflex service in Europe, but you can also look on Graflex.org or post a question on LFF forum as well.

Good Luck!
__________________
My Flickr
  Reply With Quote

Old 12-27-2016   #4
Moto-Uno
Moto-Uno
 
Moto-Uno's Avatar
 
Moto-Uno is offline
Join Date: Jan 2011
Location: The Wet Coast
Posts: 1,374
https://lommen9.home.xs4all.nl/kalart/new.html

Try this site for info. Peter
  Reply With Quote

Old 12-27-2016   #5
BillBingham2
Registered User
 
BillBingham2's Avatar
 
BillBingham2 is offline
Join Date: Jun 2005
Location: Ames, Iowa, USA
Posts: 5,385
I remember something about my fathers Crown having two stops for different lenses. Might want to look into that issue too.

B2 (;->
  Reply With Quote

Old 12-27-2016   #6
Corran
Registered User
 
Corran is offline
Join Date: Sep 2011
Location: USA
Posts: 915
Quote:
Originally Posted by jim_jm View Post
It's relatively easy to calibrate the Kalart RF

It really isn't easy to calibrate with any degree of accuracy.

Unless you specifically want to shoot handheld, don't bother.

Light leak in the middle of the image?? Perhaps post an example as there's no reason that any lens should have a "leak" unless the shutter blades are simply so gummed up as to not close properly, which I have seen a couple of times.
  Reply With Quote

Old 12-27-2016   #7
johannielscom
Leica II is The One
 
johannielscom's Avatar
 
johannielscom is offline
Join Date: Jun 2007
Location: Universitas Terre Threntiae
Posts: 7,013
Quote:
Originally Posted by lufftpablo View Post
Hi, i recently bought a graflex crown.

The kalart rangefinder is not synchronized with the lens.

Also the lens, a schneider xenar 135 4.7, seems to have a problem, there is some kind of fog or light leak on the center of the image, i think that is the lens, not the bellow because i checked it with a flashlight and i did not see a light leak.

If someone could recommend a good technician, best if based in europe i would apreciate that.

Thanks a lot
This is the fellow you want. Jo Lommen is based in the Netherlands and is a specialist in getting the Pacemaker and Anniversary Speed Graphics to work with the Kodak Aero Ektar 2.5/178mm lens, and that's a lens that needs very precise work to get it to comply with the 4x5 camera!

There's a DIY on his web site on calibrating the Kalart rangefinder (photographers used to do that themselves in the 1940s and onwards, not that hard), read it here.
__________________
www.johanniels.com | flickr | instagram
  Reply With Quote

Old 01-12-2017   #8
lufftpablo
Registered User
 
lufftpablo is offline
Join Date: Oct 2008
Posts: 18
hi here is a picture, sorry about the quality, it is a fuji fp100c with the problem that is in every picture

  Reply With Quote

Old 01-12-2017   #9
Corran
Registered User
 
Corran is offline
Join Date: Sep 2011
Location: USA
Posts: 915
Please post a picture of your Polaroid or Fuji instant film holder, so we can see the darkslide area.

Occasionally you'll find some of these holders that actually do not work with the Graflex back. For some specific market or camera, they were made with the opening slightly adjusted to the middle. I had one like that and on my Speed Graphic it did not quite sit correctly in the camera and would leak light just like that.

The solution was getting another holder. I discovered the discrepancy after a lengthy discussion about these holders on the Large Format forum.

The difference in placement of the film area is very slight and it can be hard to tell without comparison, and impossible to know unless you are aware of the problem. There are no identifying marks AFAIK on the holders.

There may also be a tear in the Speed Graphic focal plane shutter if you used that, or light leak in the bellows. Have you tested / looked for that issue?

I highly, highly doubt there is a light leak in the lens, but one other thing - there aren't any open holes in the lens board right? Sometimes these lenses come with a solenoid that people remove, which leaves a couple of little screw holes in the board. They can be patched up with electrical tape. Normally though it creates a faint double-image, like a pinhole, not a flare like that. Ask me how I know...
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 10:21.


vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.6.8
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

All content on this site is Copyright Protected and owned by its respective owner. You may link to content on this site but you may not reproduce any of it in whole or part without written consent from its owner.